Improvement in sewing-machines



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. Sewihg M ach ine. No-102,366. Patented April 26, 1870.

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F. H. BROWN. "Sewing Machine.

Patented April 26, 1870.

UNITED STATES PATENT OFFICE.

FRANKLIN H. nnown, oE'cHIcAco, ILLINOIS.

"'"iMPRdi/EM'E'NT lN Sl-ZWlNG-MACHINES.

S ecification forming part of Letters Patent No. 102,366, dated April26, 1870.

To all whom it may concern:

Be it known that I, FRANKLIN H. BROWN, of Chicago, Cook county,Illinois, have invented anew and useful Improvement in Sewin g-Maehinesand I do hereby declare that the following is a full, clear, and exactdescription thereof, which will enable others skilled in the art to makeand use the same, reference being had to the accompanying drawings,forming part of this specification, in which- Figure 1 represents a sideview, partly in section,of a sewing-machine provided with myimprovement. Fig. 2 is a vertical transverse section of the same, takenon the plane of the line a: m, Fig. 1. Fig. 3 is a detail plan or topview of the feeding apparatus. Fig. 4 is a front elevation, partly insection, of the same. Fig. 5 is a detail front view of theshuttleholder.

Similar letters of reference indicate corresponding parts.

This invention relates to a new feeding apparatus for sewing-machines,and to a novel manner of arranging and holding the shuttle; and itconsists in afeeding mechanism, as hereinafter more fully described, andalso in a shuttle-carrier provided with a projecting lug or pin, bywhich the body of the shuttle is held away from the face-plate andoperating- (lisk, an extension for protecting the point of the shuttle,and a hinged cap to confine the shuttle, the point only of the shuttlecoming in contact with the face-plate, thus obviating friction.

A in the drawings represents the cloth-plate of my improvedsewing-machine, it being supported by the front upright, B, which formspart of the frame 0 for supporting the machine.

D is the main shaft, having its hearings in front in the upright B tocarry the disk E, which moves the shuttle-carrier.

The feed-bar F, which is arranged to receive 1 reciprocating motion, ispivoted to a crank, a,

which is attached to a swinging bar, G, that is by its lower end fittedupon an eccentric, b, of the shaft 1). The bar G has a somewhat curvedor upright slot, 0, (shown in Fig. 2,) or

- a corresponding groove into which a pin, 11,

projecting from a lever, 1I,is titted. The lever H is pivoted by a pin,e, to the inner side of the support B, and projects far enough from theside of the same to allow its being conveniently moved. When the leveris moved to elevate the pin d that forms the fulcrum of the bar G themotion of the feed-bar will be reduced so that smaller stitches will bemade. \Vhen the fulcrum (I is, however, set lower in the slot 0 themotion of the feed-bar will be increased. Thus, by having thefnlcrnm-pindirectlyon the lever H, the feed can be regulated without requiring theuse of the slide shown in my Letters Patent No. 43,285, granted June 28,1864. 1

To the feed-bar F is secured an extensionarm, f, which is fitted throughan eye, g, that projects from the support B, as is clearly shown inFig. 1. This eye serves as a guide for the feed while the same is drawntoward it, and is at such height that it will retain the feed-bar in ahorizontal position while it acts on the cloth.

The shuttle I is supported on the carrier J, which is pivoted to thedisk E, and provided with a pin, it, which works in a slot or groove infront of the support 13, as in Fig. 4. The carrier has a frontextension, "i, which protects and covers the point of the shuttle, sothat the shuttle-thread when slack cannot readily become entangled withthe point of the shuttie. The shuttle is heldin place by a swingingcap,L, which is held closed by a spring, j, and which is pivoted by apin, 1, to the carrier, as shown in Figs. 4 and 5. When the cap is swungout, as in Fig. 5, the shuttle can be removed and replaced. On theinnerface of the carrier is formed a small projection, m, which is abovethehed of the shuttle near the follower end of the same, and which keepsthe shuttleend away from the disk E or plate B, so that its body isthereby kept free from contact with the same. Only the point of theshuttle will in that case come in contact with the disk and face-plate,much friction being thereby avoided.

The projecting lug m is shown in Figs. 1 and 5.

I claim as new and desire to secure by Letters Patent- 1. The crank a,in combination with the feedbar F, carrying the horizontal extension f,working through the eye g, and with the swin ging bar G, said crankbeing pivoted to the bar F, and fitted in the upper end of the bar G, as

The above specification of my invention signed by me this 9th day ofFebruary, 1869.

FRANKLIN II. BROWN. Witnesses:

FRANK BLOCKLEY, E. GREENE COLLINS.

